mirror of https://github.com/sharkdp/bat.git
58 lines
1.9 KiB
Rust
58 lines
1.9 KiB
Rust
use std::fs;
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use std::io;
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use std::path::Path;
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use std::path::PathBuf;
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use clap::crate_version;
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use bat::assets::HighlightingAssets;
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use bat::assets_metadata::AssetsMetadata;
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use bat::error::*;
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pub fn clear_assets(cache_dir: &Path) {
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clear_asset(cache_dir.join("themes.bin"), "theme set cache");
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clear_asset(cache_dir.join("syntaxes.bin"), "syntax set cache");
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clear_asset(cache_dir.join("metadata.yaml"), "metadata file");
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}
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pub fn assets_from_cache_or_binary(
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use_custom_assets: bool,
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cache_dir: &Path,
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) -> Result<HighlightingAssets> {
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if let Some(metadata) = AssetsMetadata::load_from_folder(cache_dir)? {
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if !metadata.is_compatible_with(crate_version!()) {
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return Err(format!(
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"The binary caches for the user-customized syntaxes and themes \
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in '{}' are not compatible with this version of bat ({}). To solve this, \
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either rebuild the cache (bat cache --build) or remove \
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the custom syntaxes/themes (bat cache --clear).\n\
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For more information, see:\n\n \
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https://github.com/sharkdp/bat#adding-new-syntaxes--language-definitions",
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cache_dir.to_string_lossy(),
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crate_version!()
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)
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.into());
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}
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}
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let custom_assets = if use_custom_assets {
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HighlightingAssets::from_cache(cache_dir).ok()
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} else {
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None
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};
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Ok(custom_assets.unwrap_or_else(HighlightingAssets::from_binary))
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}
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fn clear_asset(path: PathBuf, description: &str) {
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print!("Clearing {description} ... ");
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match fs::remove_file(&path) {
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Err(err) if err.kind() == io::ErrorKind::NotFound => {
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println!("skipped (not present)");
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}
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Err(err) => {
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println!("could not remove the cache file {:?}: {}", &path, err);
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}
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Ok(_) => println!("okay"),
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}
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}
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